Sr. Linux Administrator
Listed on 2026-10-13
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IT/Tech
Unix/Linux, SRE/Site Reliability, Cloud Computing: Infrastructure & Operations, Systems Engineer
Location: Cambridge, MA Salary: $65.00 USD Hourly – $80.00 USD Hourly Description:
Title: Senior Linux Platform Engineer
Type: Contract 6 months
Location: Cambridge, MA on Site
* MUST HAVE ACTIVE SECRET CLEARANCE*
We are seeking a Senior Linux Platform Engineer to build, automate, and operate secure, scalable infrastructure platforms that support modern software delivery. This role requires deep expertise in Linux administration, Kubernetes, containerization, CI/CD, and infrastructure automation.
Responsibilities- Design, deploy, and manage Linux-based platform infrastructure with a focus on automation, reliability, and security.
- Build and support containerized environments using Podman and Kubernetes.
- Develop Infrastructure as Code solutions using Ansible, including reusable playbooks, roles, and collections.
- Create and maintain CI/CD pipelines in Git Lab, incorporating testing, security scanning, and automated deployments.
- Manage Sonatype Nexus repositories for container images, Helm charts, and software packages.
- Deploy and administer Hashi Corp Vault for secrets management and credential rotation.
- Build automation tools and integrations using Python.
- Implement monitoring, logging, and alerting solutions for platform services.
- Partner with engineering, security, and SRE teams to establish platform standards and best practices.
- Mentor engineers on automation, Kubernetes, and Dev Ops methodologies.
- 5 years of Linux administration experience, preferably with RHEL.
- 3 years of experience with Kubernetes in production environments.
- Experience with Podman, Docker, or similar container technologies.
- Strong expertise in Ansible and Infrastructure as Code practices.
- Experience building and supporting Git Lab CI/CD pipelines.
- Hands-on experience with Hashi Corp Vault and Sonatype Nexus.
- Proficiency in Python scripting and automation.
- Strong knowledge of Linux networking, security hardening, and system troubleshooting.
- Experience implementing monitoring and observability solutions.
- Experience building and operating internal platform engineering solutions.
- Knowledge of Packer, Helm, and Kubernetes networking concepts.
- Experience with Dev Sec Ops and software supply chain security.
- Strong technical documentation and cross-functional communication skills.
- Proven ability to lead technical initiatives and mentor junior engineers.
RHEL, Kubernetes, Podman, Ansible, Git Lab CI/CD, Hashi Corp Vault, Nexus Repository Manager, Packer, Python, Helm, Infrastructure as Code (IaC), Dev Ops, Dev Sec Ops , Monitoring and Observability.
Medical, dental, and vision insurance are available to qualified candidates who meet eligibility requirements.
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